US20210348606A1 - Oil-injected multi-stage compressor system and procedure for controlling such a compressor system - Google Patents

Oil-injected multi-stage compressor system and procedure for controlling such a compressor system Download PDF

Info

Publication number
US20210348606A1
US20210348606A1 US17/273,422 US201917273422A US2021348606A1 US 20210348606 A1 US20210348606 A1 US 20210348606A1 US 201917273422 A US201917273422 A US 201917273422A US 2021348606 A1 US2021348606 A1 US 2021348606A1
Authority
US
United States
Prior art keywords
stage compressor
pressure stage
intercooler
inlet
compressor element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US17/273,422
Other languages
English (en)
Other versions
US12018678B2 (en
Inventor
Stijn Broucke
Pieter DE SCHAMPHELAERE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco Airpower NV
Original Assignee
Atlas Copco Airpower NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco Airpower NV filed Critical Atlas Copco Airpower NV
Assigned to ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP reassignment ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DE SCHAMPHELAERE, PIETER, BROUCKE, STIJN
Publication of US20210348606A1 publication Critical patent/US20210348606A1/en
Application granted granted Critical
Publication of US12018678B2 publication Critical patent/US12018678B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/02—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/0085—Prime movers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F04C2240/402—Plurality of electronically synchronised motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/19—Temperature
    • F04C2270/195—Controlled or regulated

Definitions

  • the present invention pertains to an oil-injected multi-stage compressor system.
  • Improved efficiency for the second and subsequent stages in a multi-stage compressor system would be an advantage that would outweigh the disadvantages described above. This improved efficiency would be possible by cooling the gas, which would reduce the consumption of the second and subsequent stages. This is not easy to achieve, however.
  • Multi-stage compressor systems already exist in which oil is injected between the two stages for cooling purposes, e.g. by means of an oil curtain in which the cooler oil lowers the temperature of the gas.
  • An oil-injected multi-stage compressor system could be applied whereby, for example, a cooler is provided between the first and second compressor element, which will actively extract heat from the gas after the first compression stage.
  • This invention aims at providing a solution to at least one of the aforementioned and other disadvantages.
  • the subject of the present invention is an oil-injected multi-stage compressor system, which includes at least a low-pressure stage compressor element with an inlet and an outlet and a high-pressure stage compressor element with an inlet and an outlet, whereby the outlet of the low-pressure stage compressor element is connected to the inlet of the high-pressure stage compressor element via a pipeline, with the characteristic that the compressor elements are provided with their own drive in the form of an electric motor, in which the compressor elements are connected to the electric motor either directly or by means of a gearbox, and that an intercooler is provided in the aforementioned pipeline between the low-pressure stage compressor element and the high-pressure stage compressor element, whereby the intercooler is
  • the temperature of an oil gas mixture is measured when measuring the temperature at the outlet of the low-pressure stage compressor element.
  • the measured temperature will be lower than the actual temperature of the gas because of the wet bulb effect.
  • One advantage is that such an oil-injected multi-stage compressor system can achieve a higher performance than the known compressors without cooling or with an oil injection in the form of an oil curtain.
  • the intercooler is adjustable, whereby the compressor system is also equipped with a control unit or regulator to control or regulate the intercooler so that the temperature at the inlet of the high-pressure stage compressor element is above the dew point.
  • the intercooler can be made adjustable in various ways.
  • a requirement for the adjustable intercooler is that the degree of cooling of the gas, or the temperature drop of the gas, can be changed. This can be done, for example, by changing the cooling capacity of the intercooler and/or by sending part of the gas through a bypass pipeline instead of through the intercooler.
  • the dew point is not a fixed value, but rather depends on various parameters such as the temperature, humidity, pressure of the gas, etc. There are several possibilities to determine this dew point.
  • the intercooler is equipped with a heat pump.
  • the invention also involves a procedure for controlling an oil-injected multi-stage compressor system that comprises at least of a low-pressure stage compressor element with an inlet and an outlet and a high-pressure stage compressor element with an inlet and an outlet, whereby the outlet of the low-pressure stage compressor element is connected to the inlet of the high-pressure stage compressor element via a pipeline, with the characteristic that the compressor elements have their own drive system in the form of an electric motor, whereby the compressor elements are connected to the electric motor either directly or by means of a gearbox, and in the aforementioned pipeline between the low-pressure stage compressor element and the high-pressure stage compressor element there is an intercooler, whereby the intercooler is adjustable, whereby the compressor system is also equipped with a control unit or regulator to control or regulate the intercooler in such a way that the temperature at the inlet to the high-pressure stage compressor element is above the dew point, and with the characteristic that the procedure involves the following steps:
  • FIG. 1 provides a schematic representation of an oil-injected multi-stage compressor system according to the invention.
  • the oil-injected multi-stage compressor system 1 shown in FIG. 1 comprises in this case two steps or “stages”: a low-pressure stage with a low-pressure stage compressor element 2 and a high-pressure stage with a high-pressure stage compressor element 3 .
  • Both compressor elements 2 , 3 are, for example, screw compressor elements, but that is not a necessary requirement for the invention.
  • compressor elements 2 , 3 are provided with their own drive in the form of electric motors 2 a and 3 a respectively, whereby in this case compressor elements 2 , 3 are directly coupled to electric motors 2 a, 3 a. It is clear that compressor elements 2 , 3 can be connected to electric motors 2 a, 3 a through a gearbox.
  • Compressor elements 2 , 3 are also equipped with an oil circuit for the injection of oil into compressor elements 2 , 3 .
  • oil circuits are not shown in the figure.
  • Low-pressure stage compressor element 2 has an inlet 4 a for gas and an outlet 5 a for compressed gas.
  • This outlet 5 a is connected to inlet 4 b of the high-pressure stage compressor element 3 through a pipeline 6 .
  • High-pressure stage compressor element 3 is also provided with an outlet 5 b, where outlet 5 b is connected to a liquid separator 7 . It is possible for outlet 8 of liquid separator 7 to be connected to an aftercooler.
  • Intercooler 9 is included in the aforementioned pipeline 6 between low-pressure stage compressor element 2 and high-pressure stage compressor element 3 .
  • the intercooler 9 is adjustable, but that is not necessary for the invention.
  • This intercooler 9 can be designed in different ways.
  • intercooler 9 can be an air-cooling unit, which is adjustable by means of a fan, whereby the flow rate of the air can be controlled by adjusting the speed of the fan.
  • intercooler 9 can be a water cooler, which is adjustable by means of a valve that can regulate the flow rate of the water.
  • intercooler 9 can be controlled by changing the temperature of the air or water.
  • bypass pipeline that can divert part of the gas so that it can go directly from low-pressure stage compressor element 2 to high-pressure stage compressor element 3 , without passing through intercooler 9 .
  • intercooler 9 It is also possible for a part of the intercooler 9 to be screened, e.g. with a plate or the like, so that not the entire intercooler is used. This means that the gas to be cooled is not exposed to the entire intercooler 9 .
  • intercooler 9 is equipped with heat pump 10 , but this is not necessary for the invention.
  • Heat pump 10 can also be adjustable, but this is not necessarily the case.
  • Compressor system 1 is also equipped with a control unit or regulator 11 for regulating or controlling intercooler 9 . If heat pump 10 is adjustable, this control unit or regulator 11 will also be able to control heat pump 10 .
  • sensor 12 is also provided. Sensor 12 is connected to the aforementioned control unit or regulator 11 .
  • This concerns sensor 12 which can measure one or more environmental parameters at inlet 4 a of low-pressure stage compressor element 2 .
  • sensor 12 can measure pressure, temperature and humidity.
  • sensor 13 is provided at inlet 4 b of the high-pressure stage compressor element 3 . This is shown schematically in the figure with a dotted line.
  • This sensor 13 can then measure the humidity at inlet 4 b.
  • device 1 is equipped with sensor 14 at inlet 4 b to measure the temperature.
  • device 1 it is not excluded for device 1 to be provided with an oil injection 15 , so that oil can be injected into pipeline 6 downstream of the intercooler 9 . This is shown schematically with a dotted line.
  • gas to be compressed e.g. air
  • inlet 4 a of low-pressure stage compressor element 2 gas to be compressed
  • the partially compressed gas flows through pipeline 6 to intercooler 9 where it is cooled, and then to inlet 4 b of high-pressure stage compressor element 3 , where it undergoes a subsequent compression.
  • Oil is injected both in low-pressure stage 2 and in high-pressure stage compressor element 3 , which will provide the lubrication and cooling for compressor elements 2 , 3 .
  • the compressed gas leaves high-pressure stage compressor element 3 through the outlet 5 b and is led to oil separator 7 .
  • the injected oil is separated and the compressed gas can then be transported to an aftercooler before being sent to the consumers.
  • this intercooler 9 must be controlled in a suitable manner to accommodate changes in the environmental and/or drive parameters of compressor elements 2 , 3 .
  • control unit or regulator 11 will regulate intercooler 9 so that the temperature at inlet 4 b of high-pressure stage compressor element 3 is above the dew point. As stated previously, this means that no condensate will occur after intercooler 9 at inlet 4 b of high-pressure stage compressor element 3 .
  • the dew point i.e. the presence of condensate, is determined or calculated at inlet 4 b of high-pressure stage compressor element 3 .
  • the dew point depends on different parameters and is in other words not a fixed value, but a variable.
  • the dew point is determined by measuring the environmental parameters with the assistance of sensor 12 .
  • the measured values from sensor 12 are transferred to the control unit or regulator 11 , which calculates the dew point on the basis thereof.
  • humidity sensor 13 At inlet 4 b of high-pressure stage compressor element 3 , it is also possible to measure the humidity at inlet 4 b to directly determine the dew point, or in other words, the presence of condensate.
  • humidity sensor 13 will also transmit the measured value to control unit 11 .
  • Another alternative is to determine the dew point by monitoring the temperature at inlet 4 b of high-pressure stage compressor element 3 , e.g. by using temperature sensor 14 at inlet 4 b of high-pressure stage compressor element 3 or another sensor specially designed thereto.
  • temperature sensor 14 will transmit the measured values of the temperature to inlet 4 b to the control unit or regulator 11 , which will monitor and evaluate the course of the measured temperatures to determine the dew point on the basis thereof.
  • control unit or regulator 11 When the dew point has been determined, the control unit or regulator 11 will regulate intercooler 9 so that the temperature at inlet 4 b of high-pressure stage compressor element 3 is above the dew point.
  • control unit or regulator 11 will request the temperature at inlet 4 b through temperature sensor 14 and compare it with the established dew point.
  • Control unit 11 will allow intercooler 9 to cool more when the temperature at inlet 4 b is higher than the dew point, as the temperature of the gas can drop even further without condensate occurring.
  • control unit 11 If the temperature is still higher than the dew point when intercooler 9 is already cooling to its maximum, control unit 11 will put heat pump 10 into operation.
  • heat pump 10 is always in operation and that regulation is only carried through intercooler 9 .
  • heat pump 10 it is also possible for heat pump 10 to be adjustable, so that when the dew point is lowered and the required cooling capacity therefore increases, the control unit 11 will allow the first intercooler 9 and then heat pump 10 , or vice versa or both at the same time or alternately, to increase their cooling capacity.
  • control unit 11 will reduce the cooling of intercooler 9 so that the temperature of the gas will rise, thereby avoiding the formation of condensate.
  • control unit 11 can also first lower the cooling capacity of heat pump 10 , or alternately lower the cooling capacity of intercooler 9 and heat pump 10 .
  • control unit or regulator 11 may allow intercooler 9 to cool down again so that the temperature of the gas will drop again.
  • the performance of the high-pressure stage compressor element can be maximized by being able to cool optimally at all times.
  • device 1 is provided with oil-injection 15 , additional cooling of the gas can be obtained with this.
  • the injected oil will provide additional lubrication for high-pressure stage compressor element 3 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)
US17/273,422 2018-09-25 2019-09-24 Oil-injected multi-stage compressor system and procedure for controlling such a compressor system Active 2040-09-23 US12018678B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2018/5657 2018-09-25
BE20185657A BE1026651B1 (nl) 2018-09-25 2018-09-25 Oliegeïnjecteerde meertraps compressorinrichting en werkwijze om een dergelijke compressorinrichting aan te sturen
PCT/IB2019/058062 WO2020065504A1 (en) 2018-09-25 2019-09-24 Oil-injected multi-stage compressor system and procedure for controlling such a compressor system

Publications (2)

Publication Number Publication Date
US20210348606A1 true US20210348606A1 (en) 2021-11-11
US12018678B2 US12018678B2 (en) 2024-06-25

Family

ID=63857642

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/273,422 Active 2040-09-23 US12018678B2 (en) 2018-09-25 2019-09-24 Oil-injected multi-stage compressor system and procedure for controlling such a compressor system

Country Status (8)

Country Link
US (1) US12018678B2 (ko)
EP (1) EP3857066B1 (ko)
JP (1) JP2022501545A (ko)
KR (1) KR102674897B1 (ko)
CN (2) CN110939571B (ko)
BE (1) BE1026651B1 (ko)
TW (1) TWI720626B (ko)
WO (1) WO2020065504A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022002369U1 (de) 2022-11-04 2024-02-06 Dirk Gros Vorrichtung zur unterstützenden Bereitstellung von Ansauggas für fluideingespritzte Kompressoren mit optimierender Einflussnahme auf die Verdichtungsendtemperatur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1026651B1 (nl) * 2018-09-25 2020-04-28 Atlas Copco Airpower Nv Oliegeïnjecteerde meertraps compressorinrichting en werkwijze om een dergelijke compressorinrichting aan te sturen
BE1029158B1 (nl) * 2021-03-02 2022-10-03 Atlas Copco Airpower Nv Mobiele olievrije meertraps compressorinrichting en werkwijze om dergelijke compressorinrichting aan te sturen
JP7085079B1 (ja) * 2022-03-18 2022-06-15 株式会社神戸製鋼所 圧縮機ユニット

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439997A (en) * 1981-03-16 1984-04-03 Cantley Robert J Energy management system for multi stage refrigeration systems
US5236311A (en) * 1992-01-09 1993-08-17 Tecumseh Products Company Compressor device for controlling oil level in two-stage high dome compressor
US5547019A (en) * 1994-10-28 1996-08-20 Iacullo; Robert S. Thermoelectric intercooler cooling turbocharged air
US5758485A (en) * 1995-08-28 1998-06-02 Asea Brown Boveri Ag Method of operating gas turbine power plant with intercooler
US20040217180A1 (en) * 2003-04-30 2004-11-04 Ming-Te Lu Temperature control system for compressor exhaust
US20100286960A1 (en) * 2009-05-07 2010-11-11 Ringeisen Marc Method and device for monitoring an intercooler bypass valve
US20130061591A1 (en) * 2011-08-16 2013-03-14 Alstom Technology Ltd. Adiabatic compressed air energy storage system and method
US20160076826A1 (en) * 2014-09-12 2016-03-17 Mahle International Gmbh Heat exchanger

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759052A (en) * 1972-02-28 1973-09-18 Maekawa Seisakusho Kk Method of controlling high stage and low stage compressors
JPH0325021A (ja) * 1989-06-21 1991-02-01 Zexel Corp 車両用冷房装置
US5885060A (en) * 1996-06-03 1999-03-23 Westinghouse Air Brake Company Thermostatically controlled intercooler system for a multiple stage compressor and method
KR100332773B1 (ko) * 1999-09-13 2002-04-17 구자홍 히트 펌프의 증발기 유량 분배장치
JP3778203B2 (ja) * 2004-05-11 2006-05-24 ダイキン工業株式会社 回転式圧縮機
JP5041849B2 (ja) * 2007-04-02 2012-10-03 オリオン機械株式会社 空気圧装置ステーションの排気温調整システム
JP5181813B2 (ja) * 2008-05-02 2013-04-10 ダイキン工業株式会社 冷凍装置
EP2306120B1 (en) * 2008-05-22 2018-02-28 Mitsubishi Electric Corporation Refrigerating cycle device
WO2011017783A2 (en) * 2009-08-11 2011-02-17 Atlas Copco Airpower, Naamloze Vennootschap High-pressure multistage centrifugal compressor
US9146046B2 (en) * 2010-07-28 2015-09-29 Lg Electronics Inc. Refrigerator and driving method thereof
JP5958819B2 (ja) * 2012-09-24 2016-08-02 三浦工業株式会社 ヒートポンプシステムおよびそれを用いた冷却システム
CN203642548U (zh) * 2013-10-23 2014-06-11 宁夏宝塔石化科技实业发展有限公司 一种避免跑油的双级制冷压缩机组装置
CN203670303U (zh) * 2013-11-29 2014-06-25 中国五环工程有限公司 离心式气体压缩机防腐蚀装置
BE1022138B1 (nl) 2014-05-16 2016-02-19 Atlas Copco Airpower, Naamloze Vennootschap Compressorinrichting en een daarbij toepasbare koeler
JP6670645B2 (ja) * 2016-03-16 2020-03-25 株式会社日立産機システム 多段圧縮機
EP3315778B2 (en) * 2016-10-28 2022-12-07 ALMiG Kompressoren GmbH Oil-injected screw air compressor
US10962262B2 (en) * 2016-11-22 2021-03-30 Danfoss A/S Method for controlling a vapour compression system during gas bypass valve malfunction
BE1026651B1 (nl) * 2018-09-25 2020-04-28 Atlas Copco Airpower Nv Oliegeïnjecteerde meertraps compressorinrichting en werkwijze om een dergelijke compressorinrichting aan te sturen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439997A (en) * 1981-03-16 1984-04-03 Cantley Robert J Energy management system for multi stage refrigeration systems
US5236311A (en) * 1992-01-09 1993-08-17 Tecumseh Products Company Compressor device for controlling oil level in two-stage high dome compressor
US5547019A (en) * 1994-10-28 1996-08-20 Iacullo; Robert S. Thermoelectric intercooler cooling turbocharged air
US5758485A (en) * 1995-08-28 1998-06-02 Asea Brown Boveri Ag Method of operating gas turbine power plant with intercooler
US20040217180A1 (en) * 2003-04-30 2004-11-04 Ming-Te Lu Temperature control system for compressor exhaust
US20100286960A1 (en) * 2009-05-07 2010-11-11 Ringeisen Marc Method and device for monitoring an intercooler bypass valve
US20130061591A1 (en) * 2011-08-16 2013-03-14 Alstom Technology Ltd. Adiabatic compressed air energy storage system and method
US20160076826A1 (en) * 2014-09-12 2016-03-17 Mahle International Gmbh Heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022002369U1 (de) 2022-11-04 2024-02-06 Dirk Gros Vorrichtung zur unterstützenden Bereitstellung von Ansauggas für fluideingespritzte Kompressoren mit optimierender Einflussnahme auf die Verdichtungsendtemperatur

Also Published As

Publication number Publication date
JP2022501545A (ja) 2022-01-06
BR112021005359A2 (pt) 2021-06-15
EP3857066B1 (en) 2022-08-24
BE1026651B1 (nl) 2020-04-28
WO2020065504A1 (en) 2020-04-02
BE1026651A1 (nl) 2020-04-20
KR20210063401A (ko) 2021-06-01
CN210623084U (zh) 2020-05-26
EP3857066A1 (en) 2021-08-04
CN110939571B (zh) 2021-11-16
CN110939571A (zh) 2020-03-31
TW202024481A (zh) 2020-07-01
TWI720626B (zh) 2021-03-01
KR102674897B1 (ko) 2024-06-12
US12018678B2 (en) 2024-06-25

Similar Documents

Publication Publication Date Title
US12018678B2 (en) Oil-injected multi-stage compressor system and procedure for controlling such a compressor system
US11371507B2 (en) Oil-injected multistage compressor device and method for controlling such a compressor device
US20130177393A1 (en) Hybrid Compressor System and Methods
US11092156B2 (en) Controller unit for controlling the speed of a motor driving an oil injected compressor and method of controlling said speed
US11519412B2 (en) Oil-injected multistage compressor device and method for controlling a compressor device
US7059837B2 (en) Variable speed oil-injected screw compressors
CN207455816U (zh) 空调机组
US20240084728A1 (en) Mobile oil-free multi-stage compressor device and method for controlling such compressor device
US20220034567A1 (en) A method for controlling a vapour compression system at a reduced suction pressure
WO2020065506A1 (en) Oil-injected multistage compressor device and method for controlling a compressor device
JP4109997B2 (ja) ターボ冷凍機
BR112021005359B1 (pt) Sistema de compressor de múltiplos estágios injetado com óleo e procedimento para controlar tal sistema de compressor
US20230392603A1 (en) Compressor device and method for controlling such a compressor device
TW202328563A (zh) 空冷式裝置和用於控制空冷式裝置的方法
WO2002018789A1 (en) Method for regulating the temperature of the exiting compressed gas of a compressor and compressor used therewith
JP2022041737A (ja) 圧縮機における圧縮気体冷却方法及び圧縮気体冷却装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP, BELGIUM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BROUCKE, STIJN;DE SCHAMPHELAERE, PIETER;SIGNING DATES FROM 20210221 TO 20210225;REEL/FRAME:055553/0981

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: ADVISORY ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED

STCF Information on status: patent grant

Free format text: PATENTED CASE